19690935

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{571}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 36516480

約数和(自身を除く): 16825545

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 121, 165, 209, 285, 363, 571, 605, 627, 1045, 1713, 1815, 2299, 2855, 3135, 6281, 6897, 8565, 10849, 11495, 18843, 31405, 32547, 34485, 54245, 69091, 94215, 119339, 162735, 207273, 345455, 358017, 596695, 1036365, 1312729, 1790085, 3938187, 6563645, 19690935]

約数ペア:

[(1, 19690935), (3, 6563645), (5, 3938187), (11, 1790085), (15, 1312729), (19, 1036365), (33, 596695), (55, 358017), (57, 345455), (95, 207273), (121, 162735), (165, 119339), (209, 94215), (285, 69091), (363, 54245), (571, 34485), (605, 32547), (627, 31405), (1045, 18843), (1713, 11495), (1815, 10849), (2299, 8565), (2855, 6897), (3135, 6281)]